A nurse in a prenatal clinic is teaching a group of clients about nutrition requirements during lactation. Which of the following statements should the nurse make?

Choice a reason:
The viability of the fetus at 38 weeks of gestation is typically not the primary concern when heavy, red vaginal bleeding occurs without contractions. Fetal movements reported by the mother are a good sign of fetal well-being. However, the ultrasound in this scenario is more likely to be used to rule out placental issues that could cause bleeding, rather than to assess fetal viability.

Choice b reason:
The biparietal diameter (BPD) is a measurement taken during an ultrasound to assess fetal growth and development. While BPD is an important parameter, it is not typically the focus of an urgent ultrasound in the context of heavy vaginal bleeding late in pregnancy. The BPD is more relevant to growth assessments rather than acute bleeding episodes.

Choice c reason:
Locating the placenta is crucial in the case of heavy, red vaginal bleeding at 38 weeks of gestation. The bleeding could be indicative of placental abruption or placenta previa, both of which are serious conditions that require immediate medical attention. An ultrasound can quickly determine the location of the placenta and assess for these conditions.

Choice d reason:
Assessing fetal lung maturity is not typically the priority in an emergency situation involving heavy vaginal bleeding. While lung maturity is an important consideration for the timing of delivery, especially in preterm labor, the immediate concern in this scenario would be to identify the source of bleeding and ensure the safety of both the mother and fetus.

Choice A reason:
Nausea can be a common side effect of many medications and does not necessarily indicate toxicity. While it can be uncomfortable for the patient, nausea alone, without other symptoms, is not typically a sign of magnesium sulfate toxicity.
Choice B reason:
Drowsiness is another side effect that can occur with various medications and medical conditions. It may be a symptom of magnesium sulfate toxicity, especially if it is severe or combined with other symptoms, but on its own, it is not a definitive indicator of toxicity.
Choice C reason:
Facial flushing can be a reaction to medication, including magnesium sulfate, and may occur even at therapeutic levels. It is not usually a sign of toxicity unless accompanied by more serious symptoms.
Choice D reason:
Respiratory depression is a serious and potentially life-threatening condition that can indicate magnesium sulfate toxicity. It is characterized by a decrease in the ability to breathe and a drop in oxygen levels. This is a critical finding that requires immediate medical attention and intervention.